Home / 3,172.68-4,758.93-1,225.31

Finding the Fourth Proportional to 3,172.68, 4,758.93 and 1,225.31

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Solution

The fourth proportional to 3,172.68, 4,758.93 and 1,225.31 is: 1,837.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,172.68 : 4,758.93 = 1,225.31 : x
  2. Step 2: Convert to fraction form
    3,172.68/4,758.93 = 1,225.31/x
  3. Step 3: Cross multiply
    3,172.68x = 4,758.93 × 1,225.31
  4. Step 4: Simplify right side
    3,172.68x = 5,831,140.72
  5. Step 5: Solve for x
    x = 5,831,140.72/3,172.68
  6. Step 6: Final answer
    x = 1,837.92

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.